Home / 21,157.46-29,197.24-11,726.02

Finding the Fourth Proportional to 21,157.46, 29,197.24 and 11,726.02

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Solution

The fourth proportional to 21,157.46, 29,197.24 and 11,726.02 is: 16,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,157.46 : 29,197.24 = 11,726.02 : x
  2. Step 2: Convert to fraction form
    21,157.46/29,197.24 = 11,726.02/x
  3. Step 3: Cross multiply
    21,157.46x = 29,197.24 × 11,726.02
  4. Step 4: Simplify right side
    21,157.46x = 342,367,420.18
  5. Step 5: Solve for x
    x = 342,367,420.18/21,157.46
  6. Step 6: Final answer
    x = 16,181.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.